1140340443442 has 4 divisors (see below), whose sum is σ = 1710510665166. Its totient is φ = 570170221720.

The previous prime is 1140340443401. The next prime is 1140340443443. The reversal of 1140340443442 is 2443440430411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1127948078401 + 12392365041 = 1062049^2 + 111321^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1140340443398 and 1140340443407.

It is not an unprimeable number, because it can be changed into a prime (1140340443443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285085110859 + ... + 285085110862.

Almost surely, 2^{1140340443442} is an apocalyptic number.

1140340443442 is a deficient number, since it is larger than the sum of its proper divisors (570170221724).

1140340443442 is an equidigital number, since it uses as much as digits as its factorization.

1140340443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570170221723.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 1140340443442 its reverse (2443440430411), we get a palindrome (3583780873853).

The spelling of 1140340443442 in words is "one trillion, one hundred forty billion, three hundred forty million, four hundred forty-three thousand, four hundred forty-two".